ABC | Volume 112, Nº6, June 2019

Statement Vascular Ultrasound Statement from the Department of Cardiovascular Imaging of the Brazilian Society of Cardiology – 2019 Arq Bras Cardiol. 2019; 112(6):809-849 Table 3 – ELSA Brasil: 13 individuals of both genders, aged 40 to 65 years, of white, multiracial, or black ethnicity Mean IMT LCCA (mm) Mean IMT RCCA (mm) Man Ethnicity Percentile 40y 45y 50y 55y 60y 65y Man Ethnicity Percentile 40y 45y 50y 55y 60y 65y White P 25 0.47 0.49 0.52 0.54 0.57 0.60 White P 25 0.45 0.48 0.51 0.53 0.56 0.59 P 50 0.53 0.57 0.60 0.64 0.67 0.71 P 50 0.51 0.54 0.58 0.61 0.65 0.69 P 75 0.60 0.65 0.69 0.73 0.77 0.81 P 75 0.59 0.63 0.67 0.71 0.75 0.79 P 90 0.70 0.75 0.80 0.85 0.90 0.95 P 90 0.66 0.71 0.76 0.81 0.85 0.90 Multiracial P 25 0.48 0.50 0.53 0.56 0.58 0.61 Multiracial P 25 0.44 0.47 0.50 0.53 0.56 0.60 P 50 0.53 0.57 0.61 0.65 0.69 0.73 P 50 0.50 0.54 0.58 0.62 0.66 0.69 P 75 0.60 0.65 0.70 0.75 0.80 0.85 P 75 0.58 0.63 0.68 0.73 0.77 0.82 P 90 0.69 0.75 0.80 0.86 0.92 0.97 P 90 0.69 0.74 0.79 0.84 0.89 0.94 Black P 25 0.49 0.52 0.55 0.58 0.62 0.65 Black P 25 0.46 0.50 0.53 0.57 0.60 0.64 P 50 0.56 0.59 0.63 0.67 0.71 0.75 P 50 0.54 0.58 0.62 0.66 0.70 0.74 P 75 0.64 0.68 0.72 0.77 0.81 0.86 P 75 0.61 0.67 0.73 0.78 0.84 0.90 P 90 0.71 0.78 0.84 0.91 0.97 1.03 P 90 0.70 0.77 0.83 0.89 0.95 1.02 Woman Etnia Percentile 40y 45y 50y 55y 60y 65y Woman Etnia Percentile 40y 45y 50y 55y 60y 65y White P 25 0.44 0.47 0.50 0.53 0.56 0.59 White P 25 0.44 0.47 0.50 0.53 0.55 0.58 P 50 0.49 0.52 0.56 0.59 0.63 0.66 P 50 0.48 0.52 0.56 0.59 0.63 0.66 P 75 0.54 0.58 0.63 0.67 0.71 0.75 P 75 0.53 0.58 0.62 0.66 0.70 0.75 P 90 0.61 0.66 0.71 0.76 0.81 0.86 P 90 0.59 0.64 0.69 0.74 0.79 0.84 Multiracial P 25 0.45 0.48 0.51 0.54 0.57 0.60 Multiracial P 25 0.44 0.47 0.50 0.53 0.56 0.59 P 50 0.50 0.53 0.57 0.60 0.64 0.67 P 50 0.49 0.52 0.56 0.60 0.64 0.68 P 75 0.56 0.60 0.64 0.68 0.72 0.77 P 75 0.55 0.59 0.63 0.68 0.72 0.76 P 90 0.63 0.68 0.73 0.78 0.83 0.88 P 90 0.62 0.67 0.72 0.77 0.82 0.87 Black P 25 0.46 0.49 0.52 0.55 0.58 0.61 Black P 25 0.46 0.49 0.53 0.56 0.59 0.63 P 50 0.51 0.55 0.59 0.63 0.67 0.70 P 50 0.51 0.55 0.59 0.63 0.67 0.71 P 75 0.57 0.62 0.66 0.70 0.75 0.79 P 75 0.58 0.62 0.67 0.71 0.76 0.80 P 90 0.64 0.70 0.76 0.82 0.88 0.94 P 90 0.64 0.71 0.77 0.83 0.90 0.96 RCCA: right common carotid artery; LCCA: left common carotid artery; IMT: intima-media thickness. Table 4 – CAPS table: 14 individuals of both genders, aged 25 to 45 years. There is no ethnic classification Man Percentile Age Woman Percentile Age 25 35 45 55 65 75 85 25 35 45 55 65 75 85 %25 0.515 0.585 0.634 0.68 0.745 0.814 0.83 %25 0.524 0.575 0.619 0.665 0.718 0.771 0.807 %50 0.567 0.633 0.686 0.746 0.83 0.914 0.937 %50 0.567 0.615 0.665 0.719 0.778 0.837 0.880 %75 0.633 0.682 0.756 0.837 0.921 1.028 1.208 %75 0.612 0.66 0.713 0.776 0.852 0.921 0.935 2.4.1. Measurement Techniques to Quantify Stenosis The assessment of carotid stenosis with VUS is based on measurements of flow velocity and their relationships using spectral Doppler, associated with the evaluation of two- dimensional and color Doppler imaging. With the patient in the supine position, use transverse and longitudinal ultrasound planes that allow the visualization of the right and left carotid system. Figure 3 shows the recommendation from DCI-BSC for the sequence of evaluation of carotid stenosis. 2.4.1.1. Quantification of Carotid Stenosis with Hemodynamic Parameters Arterial flow velocity measured by Doppler is presented as flow velocity waveforms (spectrum) for each site examined. 815